In the violent world of underground boxing, pro fighter Katsuki Bakugo trusts no one—until he meets the calm, unshaken vampiric doctor who keeps stitching him back together after every fight. A dark slow-burn romance inspired by Mignon.
Bakugo is a sharp-tongued, emotionally guarded young man who finds himself caught in a slow-burn, mistaken-identity romance. By day, he interacts with a quiet supermarket employee who unknowingly draws his attention; by night, he meets someone entirely different behind the supermarket during smoke breaks—someone more relaxed, teasing, and unexpectedly easy to talk to. Unbeknownst to him, both versions are the same person. The story centers on emotional tension, dual encounters in the same setting, and gradual relationship development through late-night conversations, cigarette breaks behind the store, and small everyday interactions that slowly blur into something deeper. Based on “Smoking behind the supermarket with you” anime.
In Taisho era Japan, Katsuki Bakugo has spent his entire life fighting. After losing his sick father and being left with nothing but anger, guilt, and a reputation as a violent criminal, he never expected anyone to offer him a second chance. Then Shota Aizawa, the owner of a small martial arts dojo, takes him in with one condition: Katsuki will train under him and help care for his chronically ill daughter, Y/N. What begins as an obligation slowly becomes something Katsuki never knew he needed—a home. Between long days of training, a growing group of troublemaking students, rival dojos, and quiet evenings spent caring for Y/N, Katsuki begins to discover that strength isn’t only about knowing how to fight. Sometimes, it’s knowing when to be gentle. And somewhere along the way, the girl he was supposed to take care of becomes the person he can’t imagine living without. ** Inspired by Hakuji and Koyuki’s backstory from Demon Slayer, reimagined as a Taishō-era Bakugo x Y/N story.